WordPress Developer Resources

apply_filters( ‘x_redirect_by’, string|false $x_redirect_by, int $status, string $location )

Filters the X-Redirect-By header.

Description

Allows applications to identify themselves when they’re doing a redirect.

Parameters

$x_redirect_bystring|false: The application doing the redirect or false to omit the header.
$statusint: Status code to use.
$locationstring: The path to redirect to.

Source

$x_redirect_by = apply_filters( 'x_redirect_by', $x_redirect_by, $status, $location );

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Changelog

Version	Description
5.1.0	Introduced.

User Contributed Notes

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ramon fincken 5 years ago

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a word of caution: it SHOULD return a string.

If you don’t return a string .. the header will not be shown
This can be seen in the pluggable.php wp_redirect function
```
$x_redirect_by = apply_filters( 'x_redirect_by', $x_redirect_by, $status, $location );
		if ( is_string( $x_redirect_by ) ) {
			header( "X-Redirect-By: $x_redirect_by" );
		}
```
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